How do YOU spend your RAF level grants?

[MiRai]

I tried doing this with an 85 hunter and the 43-ish mage, and it seemed like it was more trouble than it was worth. Of course I was also trying to do RFK which is a complete PITA to get to now.

To receive the RaF benefits the linked characters need to be within 4 levels of each other. Your initial post in this thread states you have 5 accounts, but from your last post it sounds like you're only trying this with 2 accounts. You cannot boost one single character with a high level (and still receive 300% XP) because you're obviously going to exceed the 4 level RaF limitation.

I probably don't understand the difference.

Many would refer to "boosting" as running a team of characters through an instance on which their levels are on par with, while a high level character clears it very quickly for them. "Tagging" is a method of leveling in the outside world where your team tags a mob, and others outside of your party, kill it.